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Troubleshooting

C3000 WiFi Cable Modem Router

Test the LAN Path to Your Gateway

You can use ping to verify that the LAN path to your modem router is set up correctly.



To ping the modem router from a PC running Windows 95 or later:

From the Windows toolbar, click the

Start

button and select

Run

In the field that is provided, type

ping

and then the IP address of the modem router, as in

this example:

ping 192.168.0.1

Click

You see a message like this one:

Pinging <IP address> with 32 bytes of data

If the path is working, you see this message:

Reply from < IP address >: bytes=32 time=NN ms TTL=xxx

If the path is not working, you see this message:

Request timed out

If the path is not working correctly, you could have one of the following problems:

•

Wrong physical connections.

Make sure that the LAN port LED is on. If the LED is off, see

Using LEDs to

Troubleshoot

on page

66.

Check the corresponding link LEDs are on for your network interface card and the

hub ports (if any) that are connected to your workstation and modem router.

•

Wrong network configuration.

Verify that the Ethernet card driver software and TCP/IP software are both

installed and configured on your computer or workstation.

Verify that the IP address for your modem router and your workstation are correct
and that the addresses are on the same subnet.

Test the Path from Your Computer to a Remote Device

After verifying that the LAN path works correctly, test the path from your computer to a remote

device. From the Windows run menu, type:

ping -n 10

where <

IP address

> is the IP address of a remote device such as the DNS server of your ISP.

If the path is functioning correctly, replies as in the previous section are displayed. If you do
not receive replies:

•

Check that your computer has the IP address of your modem router is listed as the
default gateway. If the IP configuration of your computer is assigned by DHCP, this

Содержание C3000

Страница 1: ...umeria Drive San Jose CA 95134 USA October 2013 C3000 WiFi Cable Modem Router User Manual Note This document is for certification purposes only Images are for position only and might differ from the actual product ...

Страница 2: ...ing your product through the NETGEAR website For product updates and web support visit http support netgear com Phone US Canada only 1 888 NETGEAR Phone Other Countries Check the list of phone numbers at http support netgear com general contact default aspx Trademarks NETGEAR the NETGEAR logo and Connect with Innovation are trademarks and or registered trademarks of NETGEAR Inc and or its subsidia...

Страница 3: ...AR genie Basic Settings Cable Connection 16 View or Configure Your Wireless Network 16 Wireless Screen Fields 18 Network Map 19 Voice Status 19 Chapter 3 NETGEAR genie Advanced Home Internet Setup 22 Wireless Setup 23 WAN Setup 23 LAN Setup 25 LAN Setup Screen Fields 26 Use the Router as a DHCP Server 26 Address Reservation 27 Chapter 4 Security Keyword Blocking of HTTP Traffic 30 Block Services P...

Страница 4: ...g to Permit External Host Communications 54 How Port Forwarding Differs from Port Triggering 55 Set Up Port Forwarding to Local Servers 55 Add a Custom Service 56 Edit or Delete a Port Forwarding Entry 57 Set Up Port Triggering 58 Dynamic DNS 60 Remote Management 61 Universal Plug and Play 63 Chapter 7 Troubleshooting Basic Functions 65 Using LEDs to Troubleshoot 66 Cannot Log In to the Modem Rout...

Страница 5: ...5 C3000 WiFi Cable Modem Router Appendix B Notification of Compliance ...

Страница 6: ...r This chapter describes how to configure the Internet connection of your gateway and includes these sections Gateway Front Panel Gateway Rear Panel Gateway Label Position Your Gateway Log In to Your Gateway View the Modem Router Home Screens Join the Wireless Network ...

Страница 7: ...e the LEDs to verify status and connections The following table lists and describes each LED and button on the front panel of the modem router Table 1 LEDs LED Description WPS Green Wireless security is enabled Off No WPS connection exists WiFi Green The wireless radio is operating Off The wireless radio is off Power Green Power is supplied to the modem router Off No power is supplied to the modem...

Страница 8: ...hannel is locked Internet Solid green The modem router is online Blinking green The modem router is synchronizing with the cable provider s cable modem termination system CMTS Off The modem router is offline 2 4 GHz radio Green The 2 4 GHz radio is on Off The 2 4 GHz radio is off Ethernet Green A device is connected to an Ethernet port and powered on Off No device is detected to an Ethernet port U...

Страница 9: ...the Reset button for over 7 seconds The modem router resets and returns to its factory settings See Factory Default Settings on page 71 Phone port A telephone connection for an analog phone line Two Gigabit Ethernet LAN ports Use these ports to connect local computers Coaxial cable connector Attach a coaxial cable to the cable service provider connection Power adapter input Connect the power adapt...

Страница 10: ...ut your modem router Position Your Gateway The operating distance or range of your wireless connection can vary based on the physical placement of the gateway For best results place your gateway Near the center of the area in which your computers operate In an elevated location such as a high shelf Away from potential sources of interference such as computers microwave ovens and cordless phones Aw...

Страница 11: ...ter automatically logs you out after 5 minutes of no activity To log in to the modem router 1 On the computer that is connected to the modem router with an Ethernet cable type http 192 168 0 1 in the address field of your Internet browser A login window opens 2 Log in with the user name admin and its default password of password The modem router Basic Home screen displays when you log in see Basic...

Страница 12: ...when you log in to the modem router or select the Home tab Cable Connection This option displays the cable signal quality the upstream power the downstream power and the connection status Wireless Select this option to view or change the wireless settings for your modem router Network Map Select this option to view the devices that are connected to your network Voice This option displays the voice...

Страница 13: ...nus and at the top there is a Basic tab that is used to the basic menus and screens Advanced Home This dashboard screen displays when you select the Advanced tab Setup Set up the Internet connection wireless WAN and LAN Security Block sites block services and set up email notifications Administration View gateway status logs and event logs back up and restore the configuration file and change the ...

Страница 14: ... to connect to your modem router This software scans for all wireless networks in your area 2 Look for your network and select it If you did not change the name of your network during the setup process look for the default WiFi network name SSID and select it The default SSID is on the label on the bottom of the modem router 3 Enter the modem router password and click Connect The default password ...

Страница 15: ...ur Internet connection and network This chapter explains the features available from the genie Basic Home screen This chapter contains the following sections Cable Connection View or Configure Your Wireless Network Network Map Voice Status ...

Страница 16: ...eam cable channel The time is displayed after the modem router is initialized The modem router automatically goes through the following steps in the provisioning process Scans and locks the downstream frequency and then ranges the upstream channels Obtains a WAN address for the modem router Connects to the Internet View or Configure Your Wireless Network The Wireless screen lets you view or config...

Страница 17: ...router To view or change basic wireless settings 1 From the Basic tab select Wireless The screen sections settings and procedures are explained in the following sections 2 Make the appropriate changes 3 Click the Apply button Your settings are saved 4 Set up and test your wireless devices and computers to make sure that they can connect wirelessly If they do not check the following Is your wireles...

Страница 18: ... as the wireless network name Enter a 32 character maximum name in this field This field is case sensitive The default SSID is randomly generated and NETGEAR strongly recommends that you do not change the SSID Channel This setting is the wireless channel that the modem router uses Choose a value from 1 through 13 For products in the North America market only Channels 1 through 11 can be operated D...

Страница 19: ... view a map of attached devices From the Basic tab select Network Map Wired devices are connected to the modem router with Ethernet cables Wireless devices have joined the wireless network IP Address The IP address that the modem router assigned to this device when it joined the network This number can change when a device disconnects and then rejoins the network Device Name If the device name is ...

Страница 20: ... The gateway status The values can be Operational On hook or Off hook This status applies to line 1 MTA MAC Address The telephony MAC address MTA IP Address The telephony IP address MTA FQDN The Fully Qualified Domain Name FQDN The Internet service provider assigns this name MTA Telephony Signaling This value is set to Media Gateway Control Protocol MGCP a way of to set up voice calls ...

Страница 21: ...ie Advanced Home screen This chapter contains the following sections Internet Setup Wireless Setup WAN Setup LAN Setup Some selections on the Advanced Home screen are described in separate chapters Security See Chapter 4 Security Administration See Chapter 5 Administration Advanced Setup See Chapter 6 Advanced Settings ...

Страница 22: ...ons explain all of the possible fields in the Internet Setup screen Internet IP Address If you log in to your service or your ISP did not provide you with a fixed IP address the gateway finds an IP address for you automatically when you connect Select Get Dynamically from ISP If you have a fixed or static IP address your ISP has provided you with the required information Select Use Static IP Addre...

Страница 23: ...the fields on this screen see View or Configure Your Wireless Network on page 16 WAN Setup The WAN Setup screen lets you configure a DMZ demilitarized zone server and enable the modem router to respond to a ping on the WAN Internet port To change the WAN settings From the Advanced tab select Setup WAN Setup The following screen displays Disable IPv4 Firewall Protection Firewalls protect your gatew...

Страница 24: ...MTU only if you are sure that it is necessary for your ISP connection Disable SIP ALG The Session Initiation Protocol SIP Application Level Gateway ALG is disabled by default which is useful when running certain applications To enable SIP ALG and optimize VoIP phone calls that use the SIP uncheck the check box The default DMZ server feature is helpful when you are using some online games and video...

Страница 25: ...ses are part of the designated private address range for use in private networks and are suitable for most applications If your network requires you to use a different IP addressing scheme make those required changes in the LAN Setup screen To change the LAN settings Note If you change the LAN IP address of the modem router while connected through the browser you are disconnected Open a new connec...

Страница 26: ... default the modem router functions as a DHCP server This capability allows the modem router to assign IP DNS server and default gateway addresses to all computers connected to the LAN that is connected to the modem router The assigned default gateway address is the LAN address of the modem router The modem router assigns IP addresses to the attached computers from a pool of addresses that are spe...

Страница 27: ...er as DHCP Server check box and click the Apply button Otherwise leave this check box selected If this service is not enabled and no other DHCP server is available on your network set the IP addresses of your computer manually or other devices cannot access the modem router Address Reservation When you specify a reserved IP address for a computer on the LAN that computer always receives the same I...

Страница 28: ...is already on your network copy its MAC address from the Attached Devices screen and paste it here 5 To enter the reserved address into the table click the Apply button The reserved address is not assigned until the next time the computer contacts the DHCP server of the modem router Reboot the computer or access its IP configuration and force a DHCP release and renew To edit or delete a reserved a...

Страница 29: ...s chapter explains how to prevent objectionable content from reaching the computers and other devices that are connected to your network This chapter includes the following sections Keyword Blocking of HTTP Traffic Block Services Port Filtering Schedule Blocking ...

Страница 30: ...ain click Add URL Keyword and click the Apply button The keyword list supports up to 32 entries Here are some sample entries Specify XXX to block http www badstuff com xxx html Specify com if you want to allow only sites with domain suffixes such as edu or gov Enter a period to block all Internet browsing access To delete a keyword or domain 1 Select the keyword that you want to delete from the li...

Страница 31: ...net Engineering Task Force IETF at http www ietf org and published in RFC1700 Assigned Numbers Service numbers for other applications are typically chosen from the range 1024 65535 by the authors of the application Although the modem router already holds a list of many service port numbers you are not limited to these choices You can often determine port number information by contacting the publis...

Страница 32: ...ge of port numbers of the service For known services these fields are filled in automatically If you know that the application uses either TCP or UDP select the appropriate protocol If you are not sure select TCP UDP 7 Enter the starting and ending port numbers If the application uses a single port number enter that number in both fields 8 Enter the IP address of the computer that you want to bloc...

Страница 33: ...y blocking by selecting the appropriate check boxes or select Every Day to select the check boxes for all days Time of Day to Block Select a start and end time in 24 hour format or select All Day for 24 hour blocking 4 Select your time zone from the list If you use daylight savings time select the Automatically adjust for daylight savings time check box 5 Click the Apply button Your settings are s...

Страница 34: ...es the modem router settings for administering and maintaining your modem router and home network This chapter includes the following sections View Modem Router Status Router Mode Network Map Back Up Settings Set Password View Event Logs Diagnostics Wireless Channel ...

Страница 35: ... number of the cable modem CM certificate The status of the cable modem certificate If Not installed displays as the status contact your Internet service provider CM MAC The MAC address of the cable modem LAN Port The MAC address of LAN port 1 MAC Address The Media Access Control address This address is the unique physical address that the Ethernet LAN port of the modem router uses IP Address The ...

Страница 36: ... wireless port being used The default channel is Auto When Auto is selected the modem router finds the best operating channel available If you notice interference from nearby devices you can select a different channel Channels 1 6 and 11 do not interfere with each other Mode The wireless communication mode Up to 54 Mbps Up to 145 Mbps default and Up to 300 Mbps Wireless AP Indicates whether the ra...

Страница 37: ...he No radio button the modem router works as a bridge and obtains IP addresses from the Internet service provider Logs The log is a detailed record of the websites you have accessed or attempted to access Up to 256 entries are stored in the log Log entries display only when keyword blocking is enabled No log entries are made for the trusted LAN client To view the logs From the Advanced tab select ...

Страница 38: ...h access was attempted Action Whether the access was blocked or allowed Known DoS attacks and Port Scans To ignore known DoS attacks and port scans clear this check box To refresh the log screen click the Refresh button To clear the log entries click the Clear Log button To email the log immediately click the Send Log button To save your changes click the Apply button Network Map The network map d...

Страница 39: ... connected device MAC Address The MAC address of the connected device Interface The way the device is connected Ethernet1 Ethernet2 or WiFi interface Back Up Settings The configuration settings of the wireless cable gateway are stored within the modem router in a configuration file You can back up save this file to your computer restore it or reset it to the factory default settings ...

Страница 40: ...e full path to the file on your network or click the Browse button 2 When you have located the cfg file click the Restore button to upload the file to the modem router Upon completion the modem router reboots WARNING Do not interrupt the reboot process Erase Under some circumstances for example if you move the modem router to a different network or if you have forgotten the password you might want...

Страница 41: ...e label on the bottom of your modem router shows your unique wireless network name SSID and password for wireless access see Gateway Label on page 10 To set the password for the user name admin 1 From the Advanced tab select Administration Set Password The following screen displays 2 Type the old password 3 Type the new password in the Set Password field 4 Type the new password in the Repeat New P...

Страница 42: ...screen click the Refresh button To clear the log entries click the Clear Log button Diagnostics From the Diagnostics screen you can run ping traceroute DS throughput and US throughput utilities Ping Utility Ping is an administration utility that tests whether a computer on the network is reachable and measures the time it takes messages sent from the originating device to reach a destination compu...

Страница 43: ...he ping packet No of Pings The number of times to ping the target computer Ping Interval The time between pings 4 Click Start Test The ping results display To stop a ping test Click Abort Test To clear the results from the display Click Clear Results Traceroute Utility To display the route and measure transit delays of packets across an IP run the traceroute utility To run a traceroute test 1 From...

Страница 44: ...mber of hops to allow when tracing the route Data Size The input the size in bytes of the packet Base Port The port number to send the packet to Resolve Host Select on to resolve the host name to the IP address 4 Click Start Test The traceroute results display To clear the results from the display Click Clear Results DS Throughput Utility To display the run the DS throughput utility To run a DS th...

Страница 45: ...ity list select DS throughput 3 Click Start Test The DS throughput results display To clear the results from the display Click Clear Results US Throughput Utility To display the run the US throughput utility To run a US throughput test 1 From the Advanced tab select Administration Diagnostics ...

Страница 46: ...The US throughput results display To clear the results from the display Click Clear Results Wireless Channel You can use the Wireless Channel screen to view wireless networks or access points in your area and to select and join a wireless network To manage your wireless access point AP From the Advanced tab select Administration Wireless AP ...

Страница 47: ...work is shown in blue Yellow shows other networks in your area Many countries and geographic locations have laws or guidelines about which channels can be used Depending on your location some channels might not be available If many wireless networks at your location use the same channel as your wireless network you might experience interference You can change the channel to avoid the interference ...

Страница 48: ...cepts It is for people who want to set up the modem router for unique situations such as when remote access from the Internet by IP or domain name is needed This chapter includes the following sections Advanced Wireless Settings Port Forwarding and Port Triggering Set Up Port Forwarding to Local Servers Set Up Port Triggering Dynamic DNS Remote Management Universal Plug and Play ...

Страница 49: ...ected NETGEAR recommends that you leave this check box selected If you clear this check box the next time a new wireless client uses WPS to connect to the modem router the modem router wireless settings change to an automatically generated random SSID and security key WMM Support WMM Wireless Multimedia is a subset of the 802 11e standard WMM allows wireless traffic to have a range of priorities d...

Страница 50: ...ontrol On check box If the Turn Access Control On check box is selected and the access control list is blank then no wireless computers or devices can connect to your wireless network 4 To add computers or devices to the access list click the Add button The Wireless Card Access Setup screen displays This screen displays a list of currently active wireless computers and devices and their Ethernet M...

Страница 51: ...nformation to help you understand how port forwarding and port triggering work and the differences between the two Remote Computer Access Basics When a computer on your network accesses a computer on the Internet your computer sends your modem router a message containing the source and destination address and process information Before forwarding your message to the remote computer your modem rout...

Страница 52: ...erver process Destination address The public IP address of your modem router Destination port number 33333 5 Upon receiving the incoming message your modem router checks its session table to determine whether there is an active session for port number 33333 Finding an active session the modem router then modifies the message to restore the original address information that is replaced by NAT Your ...

Страница 53: ...aving observed the destination port number of 6667 your modem router creates an additional session entry to send any incoming port 113 traffic to your computer 5 The IRC server sends a return message to your modem router using the NAT assigned source port as in the previous example say port 33333 as the destination port The IRC server also sends an identify message to your modem router with destin...

Страница 54: ... composes a web page request message with the following destination information Destination address The IP address of www example com which is the address of your modem router Destination port number 80 which is the standard port number for a web server process The remote computer then sends this request message through the Internet to your modem router 2 Your modem router receives the request mes...

Страница 55: ...servers on your local network For example you want to make a local web server FTP server or game server visible and available to the Internet Use the Port Forwarding Port Triggering screen to configure the modem router to forward specific incoming protocols to computers on your local network In addition to servers for specific applications you can also specify a default DMZ server to which all oth...

Страница 56: ...your local computer that provides this service 4 Click Add The service displays in the list in the screen Add a Custom Service To define a service game or application that does not display in the Service Name list determine which port number or range of numbers the application uses You can usually determine this information by contacting the publisher of the application or user groups or newsgroup...

Страница 57: ...that provides this service 8 Click the Apply button The service displays in the list in the Port Forwarding Port Triggering screen Edit or Delete a Port Forwarding Entry To edit or delete a port forwarding entry 1 In the table select the radio button next to the service name 2 Click Edit Service or Delete Service Application example Making a Local Web Server Public If you host a web server on your...

Страница 58: ...a specified outbound trigger port When the modem router detects outbound traffic on that port it remembers the IP address of the local computer that sent the data The modem router then temporarily opens the specified incoming port or ports and forwards incoming traffic on the triggered ports to the triggering computer While port forwarding creates a static mapping of a port number or range to a si...

Страница 59: ...ever any port triggering configuration information you added to the modem router is retained even though it is not used 4 In the Port Triggering Time out field enter a value up to 9999 minutes 5 This value controls the inactivity timer for the designated inbound ports The inbound ports close when the inactivity time expires This step is required because the modem router cannot be sure when the app...

Страница 60: ...blic Domain Name Servers DNS However if your Internet account uses a dynamically assigned IP address you do not know in advance what your IP address is and the address can change frequently In this case you can use a commercial Dynamic DNS service This type of service lets you register your domain to their IP address and forwards traffic directed at your domain to your frequently changing IP addre...

Страница 61: ...rovider gave you 6 Type the user name for your Dynamic DNS account This name is the name that you use to log in to your account not your host name 7 Type the password or key for your Dynamic DNS account 8 Click the Apply button Your configuration is saved Remote Management The remote management feature lets you access your modem router over the Internet to view or change its settings Note Be sure ...

Страница 62: ... To define the allowed range enter a beginning and ending IP address To specify IP addresses select IP Address List and type in the allowed IP addresses To allow access from any IP address on the Internet select Everyone 4 Specify the port number for accessing the web management interface Normal web browser access uses the standard HTTP service port 80 For greater security enter a custom port numb...

Страница 63: ... XP enable UPnP To turn on Universal Plug and Play 1 From the Advanced tab select Advanced Setup UPnP 2 Specify the following settings Turn UPnP On UPnP can be enabled or disabled for automatic device configuration The default setting for UPnP is enabled If this check box is not selected the modem router does not allow any device to control the resources automatically such as port forwarding mappi...

Страница 64: ... default value for the advertisement time to live is four hops which are fine for most home networks If you notice that some devices are not being updated or reached correctly you should increase this value UPnP Portmap Table The UPnP Portmap Table displays the IP address of each UPnP device that is accessing the modem router and which ports internal and external that device has opened The UPnP Po...

Страница 65: ... the ISP Connection on page 67 I cannot remember the configuration password of the modem router or I want to clear the configuration and start over again Go to Factory Default Settings on page 71 Tip NETGEAR provides helpful articles documentation and the latest software updates at support netgear com Basic Functions After you have turned on power to the modem router do the following 1 Check to se...

Страница 66: ...ure at the modem router and at the hub or computer Make sure that power is turned on to the connected hub or computer Be sure that you are using the correct cable Internet LED is off and the modem router is connected to the cable television cable Make sure that the coaxial cable connections are secure at the modem router and at the wall jack Make sure that your cable Internet service has been prov...

Страница 67: ...uter user name euskaltel is lower case Caps Lock is off The default password of euskaltel If the modem router does not save changes you have made check the following When entering configuration settings be sure to click the Apply button before moving to another screen or your changes are lost Click the Refresh or Reload button in the web browser The changes have occurred but the web browser might ...

Страница 68: ... to Troubleshoot on page 66 Check the corresponding link LEDs are on for your network interface card and the hub ports if any that are connected to your workstation and modem router Wrong network configuration Verify that the Ethernet card driver software and TCP IP software are both installed and configured on your computer or workstation Verify that the IP address for your modem router and your ...

Страница 69: ...onsumption of wireless adapters also vary depending on your configuration choices For best results place your modem router according to the following guidelines Near the center of the area in which your computers operate In an elevated location such as a high shelf where the wirelessly connected computers have line of sight access even if through walls Away from sources of interference such as com...

Страница 70: ...70 A A Supplemental Information This appendix includes the following sections Factory Default Settings Technical Specifications ...

Страница 71: ...se sensitive admin password Local network LAN LAN IP 192 168 0 1 Subnet mask 255 255 255 0 DHCP server Enabled DHCP starting IP address 192 168 0 2 DHCP ending IP address 192 168 0 254 Firewall Inbound communication from the Internet Disabled except traffic on port 80 the HTTP port Outbound communication to the Internet Enabled all Source MAC filtering Disabled Internet connection WAN MAC address ...

Страница 72: ...aximum relative humidity noncondensing Electromagnetic emissions Meets requirements of FCC Part 15 Class B Interface Local 10BASE T 100 1000BASE Tx RJ 45 802 11n g b Internet DOCSIS 3 0 Downward compatible with DOCSIS 2 0 1 1 and 1 0 Wireless continued Transmission speed Auto Country region United States in the US otherwise varies by region RF channel Auto Operating mode n g and b Data rate Best O...

Страница 73: ...d for setting up outdoor radio links in France and in some areas the RF output power may be limited to 10 mW EIRP in the frequency range of 2454 2483 5 MHz For detailed information the end user should contact the national spectrum authority in France FCC Requirements for Operation in the United States FCC Information to User This product does not contain any user serviceable components and is to b...

Страница 74: ...not be co located or operating in conjunction with any other antenna or transmitter except in accordance with FCC multi transmitter product procedures Cet appareil et son antenne s ne doit pas être co localisés ou fonctionnement en association avec une autre antenne ou transmetteur Canadian Department of Communications Radio Interference Regulations This digital apparatus C3000 WiFi Cable Modem Ro...

Страница 75: ...z est réservé uniquement pour une utili sation à l intérieur afin de réduire les risques de brouillage préjudiciable aux systèmes de satellites mobiles utilisant les mêmes canaux Les utilisateurs de radars de haute puissance sont désignés utilisateurs principaux c à d qu ils ont la priorité pour les bandes 5250 5350 MHz et 5650 5850 MHz et que ces radars pourraient causer du brouillage et ou des d...

Страница 76: ...Notification of Compliance 76 C3000 WiFi Cable Modem Router ...

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